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knowtheory avatar knowtheory commented on June 30, 2024

Hey @hderms, could you explain your use case a little further?

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hderms avatar hderms commented on June 30, 2024

I think perhaps I was being a little unclear. If one's primary goal is to split a PDF or PPT, or whatever into a bunch of sequential images via the Docsplit.extract_images method, then perhaps it would be useful to have that method return the paths of all the images extracted, rather than the paths of the PDFs from @pdfs in ImageExtractor. The PDF is merely an intermediate step, as far as I know, and returning the paths to the images extracted is probably more useful in most cases.

In my particular case, I have a Document model in rails, and I'd like it to have_many images. Programmatically receiving the paths to the images after extraction would be useful to me in setting up this relation.

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hderms avatar hderms commented on June 30, 2024

I have a patch that implements this functionality like so:

Docsplit.extract_images('/home/rvibe/Downloads/BadPresentations.ppt', :size => '1000x', :format => [:png, :jpg], :and_return => :images)
=> [["/home/rvibe/Lib/docsplit/BadPresentations_1.png", "/home/rvibe/Lib/docsplit/BadPresentations_2.png", "/home/rvibe/Lib/docsplit/BadPresentations_3.png", "/home/rvibe/Lib/docsplit/BadPresentations_4.png", "/home/rvibe/Lib/docsplit/BadPresentations_5.png", "/home/rvibe/Lib/docsplit/BadPresentations_6.png", "/home/rvibe/Lib/docsplit/BadPresentations_7.png"], ["/home/rvibe/Lib/docsplit/BadPresentations_1.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_2.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_3.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_4.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_5.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_6.jpg", "/home/rvibe/Lib/docsplit/BadPresentations_7.jpg"]]

Without using the :and_return=> :images option, the default behavior is preserved:

Docsplit.extract_images('/home/rvibe/Downloads/BadPresentations.ppt', :size => '1000x', :format => [:png, :jpg])
=> ["/tmp/docsplit/BadPresentations.pdf"]

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